But with CVS Pay, customers can leave their wallets at home. All you need to get rewards and make payments at the store is right there inside the app.

As CVS' chief digital officer told TechCrunch, "With one scan, we're taking away three or four extra steps that customers have lived with for a long time."

Many media outlets have compared CVS' new system to the Starbucks app and rival Walmart's app, where users can store credit card information, make payments and earn rewards all by using their smartphone.

But the focus of CVS Pay is making prescription pick ups easier. The app will let you store card information for Flexible Spending Accounts and Health Spending Accounts to make splitting purchases a breeze. And the app will even work at the pharmacy drive-up window.

And CVS' move comes at a time when mobile payment system usage is expected to soar.

According to a report from eMarketer, nearly 1 in 5 smartphone users are expected to use mobile payments this year. That's up nearly 62 percent from 2015.

CVS Pay officially launched Thursday in select stores in New York, Pennsylvania, New Jersey and Delaware. The feature is expected to be available nationwide by the end of the year.

This video includes clips from CVS Health and images from Getty Images.